CA1317723C - Apparatus for removing injection molded parts - Google Patents
Apparatus for removing injection molded partsInfo
- Publication number
- CA1317723C CA1317723C CA000609133A CA609133A CA1317723C CA 1317723 C CA1317723 C CA 1317723C CA 000609133 A CA000609133 A CA 000609133A CA 609133 A CA609133 A CA 609133A CA 1317723 C CA1317723 C CA 1317723C
- Authority
- CA
- Canada
- Prior art keywords
- toothed belt
- drive
- mold support
- support plate
- chain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
- B29C45/4208—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots and driven by the movable mould part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
Abstract
O.Z. 0050/40167 ABSTRACT OF THE DISCLOSURE: For removing injection molded parts from a 3-part.
multi-level mold of an injection molding machine, removal tools can be driven into the open mold when the support plates open. There is a coupling of move-ments by means of chain drives or toothed belt drives between the external movable mold support plate and the removal tools.
multi-level mold of an injection molding machine, removal tools can be driven into the open mold when the support plates open. There is a coupling of move-ments by means of chain drives or toothed belt drives between the external movable mold support plate and the removal tools.
Description
~ 3 ~ ~23 O.Z. 0050/40167 Apparatus for removinq iniection molded Parts The pre~ent invention relate~ ~o an apparatu for removing in~ec~ion molded parts from an in~ection molding mPchine having a multi-level mold which has two mold ~up-port plates which can be moved with respect to a station~ary mold support plate. German Vtility ~odel 8200184 discloses an injec-tion mold having a removal apparatus in which, to drive them in and out between the mold support plates, g r;pper tools are driven by means of the mova~le mold support plate via a kinematic chain which consists of a toothed wheel capable of rolling on a rack, a crank connected to the said toothed wheel and a further ~ack hinged thereon for driving a further toothed wheel which is coupled to a chain drive carrying the gripper tool~.
Such a remo~al apparatus is un~uitable for the injection mold which forms the ba~is here, since the insertion and withdrawal movements of the gripper tools running with the movable mold support plate would also have to be transmitted to those coordinated with the stationary mold support plate. Technical implementation would be complicated and expensive.
It i~ an object of the present invention to pro-vide an apparatus by means of which the injection molded parts can be removed from the multi-level mold of an injection molding machine, and there should be a coupling of movements for this purpose between the apparatus and the movable mold part.
We have found that this ob~ect is achieved by an apparatus compriqing a first chain drive or ~oothed belt drive which pa3ses around two stationary reversing wheels and which is engaged by a drive wheel mounted on the mold support plate which can be moved by the injec~ion molding machine, and second and third chain drive~ or toothed belt drives which can be driven by the first chain drive or toothed belt drive by means of step-up gears and are equipped wLth removal tool~, and one of which is 1~17723 - 2 - O.Z. 0050/40167 connected to the stationary mold ~upport plate and the other is connected to cne of the movable mold support plates.
The drawing schematically shows an embodiment of S the apparatus, and the invention i8 described below with reference to the embodiment.
The multi-level mold of the injection molding machine from which the in~ection molded parts are to be removed after the mold has been opaned consists of a stationary mold support plate 1, an outer mold support plate 2 which can be moved with respect to the said plate 1, and a middle mold support plate 3 which can be moved in the s~me way, the stationary mold support plate being provided with the feed 4 for the plastic melt.
The novel apparatus for removing injection molded parts i3 connected kinematically to the movable mold ~up-port plate 2 by means of chain drives or toothed belt drives in such a way that the removal tools can be driven, with the opening movement of the mold support plate, tow~rd the in~ection molded parts to be removed from the mold cavities. In ~he present embodiment, a toothed belt drive is used.
A first toothed belt 5 passes around two station-ary reversing wheels 6 and 7 which have a toothed profile and are rotatably mounted on mounting plates 8 and 9.
The toothed belt is engaged by a drive wheel 10 which is mounted on the movable, out~r mold support pla~e ~ and, when tha plate moves, rolls on the toothed belt as well as advancing the latter.
Removal tools 11 and 12, for example grippers or suction lifters, can ba driven by means of holding plates 13 provided with sliding bu~he~ 14, on guide rails lS and 16 between the mold support plates in the open position, the guide rail 16 for the tools 12 coordinated with the st~tionary mold support plate 1 being fastened to the mounting plate 9, and the rail lS of the tools 11 pro-vided or tha movable, outer mold ~upport plate 2 being 3 _ o.Z. 0050/40167 fastened to the said mold support plate.
It is advantageous to mount the removal tool~ 11 and 12 rotatably on the holding plates 13. This makes it possible to rotate the tools with the aid of a suitable drive to another level, for example to place the injec-tion molded parts on a conveyor belt or directly in a magazine.
For driving the removal tools 11 and 12 in and out, the holding plates are fastened to the relevant toothed belt 17 or 18. It is advantageous for them to be detachably fastened, for example by means of pneumatic coupling or clamping elements, so that, if required, for exampla in the start-up phase of the injection molding machine, the tools can be put out of operation. The two toothed belt drives are driven by the f irst toothed belt 5. For this purpose, a further reversing wheel 23, 24, respectively, is nonrokatably arranged on the shafts 21 and 22 of the drive wheel 10 and of the reversing wheel 7 coordinated with ths ~ta~ionary mold support plate 1l the toothed belt 17 or 18, respectively, passing around the said reversing wheel 23 or 24 and around a re~ersing wheel 25 or 26 mounted on the fre0 end of the guide rail 15 or 16, respectively. The ~tep-up ratio of the wheels 10, 23 or 7, 24 nonrotatably conn~cted to one another by the particular shaft 21 or 2~ depends on the ratio of the distances traveled by the movable mold support plate 2 during the opening or closing movement and by the removal tools 11 and 12 moving in and out.
For exac positioniny of the tools 11 and 12 in the removal position~ a stop 27 is provided, against which one of the holding plates 13 comes ~o rest. The mold support pl~te 2 carrying the drive wheel 10 i5 moved slightly further, for example from 5 to 10 mm, in order to keep the holding plate firmly positioned at the ~top.
A clamping element 28 inserted in the first toothed belt 5, for example a spring or a hydraulic or p~eumatic work-ing cyllnder mounted o~ the mold support plate 2, avoids - 4 - o.Z. 0050/40167 overextansion of the blocked toothed belt. A working cylinder has the advantage that the clamping force is ad~ustable by means of the operating pressure. For example, the pres3ure and hence the clamping force can be reduced when the stop position i reached, to prevent ths load on the toothed belt from increasing. For this purpos~, an appropriate final control elementr for ex-ample a valve, in the operatincJ pressure loop is adjusted by means of a switch or sensor present at the stop position, via a conventional control circuit.
Such a remo~al apparatus is un~uitable for the injection mold which forms the ba~is here, since the insertion and withdrawal movements of the gripper tools running with the movable mold support plate would also have to be transmitted to those coordinated with the stationary mold support plate. Technical implementation would be complicated and expensive.
It i~ an object of the present invention to pro-vide an apparatus by means of which the injection molded parts can be removed from the multi-level mold of an injection molding machine, and there should be a coupling of movements for this purpose between the apparatus and the movable mold part.
We have found that this ob~ect is achieved by an apparatus compriqing a first chain drive or ~oothed belt drive which pa3ses around two stationary reversing wheels and which is engaged by a drive wheel mounted on the mold support plate which can be moved by the injec~ion molding machine, and second and third chain drive~ or toothed belt drives which can be driven by the first chain drive or toothed belt drive by means of step-up gears and are equipped wLth removal tool~, and one of which is 1~17723 - 2 - O.Z. 0050/40167 connected to the stationary mold ~upport plate and the other is connected to cne of the movable mold support plates.
The drawing schematically shows an embodiment of S the apparatus, and the invention i8 described below with reference to the embodiment.
The multi-level mold of the injection molding machine from which the in~ection molded parts are to be removed after the mold has been opaned consists of a stationary mold support plate 1, an outer mold support plate 2 which can be moved with respect to the said plate 1, and a middle mold support plate 3 which can be moved in the s~me way, the stationary mold support plate being provided with the feed 4 for the plastic melt.
The novel apparatus for removing injection molded parts i3 connected kinematically to the movable mold ~up-port plate 2 by means of chain drives or toothed belt drives in such a way that the removal tools can be driven, with the opening movement of the mold support plate, tow~rd the in~ection molded parts to be removed from the mold cavities. In ~he present embodiment, a toothed belt drive is used.
A first toothed belt 5 passes around two station-ary reversing wheels 6 and 7 which have a toothed profile and are rotatably mounted on mounting plates 8 and 9.
The toothed belt is engaged by a drive wheel 10 which is mounted on the movable, out~r mold support pla~e ~ and, when tha plate moves, rolls on the toothed belt as well as advancing the latter.
Removal tools 11 and 12, for example grippers or suction lifters, can ba driven by means of holding plates 13 provided with sliding bu~he~ 14, on guide rails lS and 16 between the mold support plates in the open position, the guide rail 16 for the tools 12 coordinated with the st~tionary mold support plate 1 being fastened to the mounting plate 9, and the rail lS of the tools 11 pro-vided or tha movable, outer mold ~upport plate 2 being 3 _ o.Z. 0050/40167 fastened to the said mold support plate.
It is advantageous to mount the removal tool~ 11 and 12 rotatably on the holding plates 13. This makes it possible to rotate the tools with the aid of a suitable drive to another level, for example to place the injec-tion molded parts on a conveyor belt or directly in a magazine.
For driving the removal tools 11 and 12 in and out, the holding plates are fastened to the relevant toothed belt 17 or 18. It is advantageous for them to be detachably fastened, for example by means of pneumatic coupling or clamping elements, so that, if required, for exampla in the start-up phase of the injection molding machine, the tools can be put out of operation. The two toothed belt drives are driven by the f irst toothed belt 5. For this purpose, a further reversing wheel 23, 24, respectively, is nonrokatably arranged on the shafts 21 and 22 of the drive wheel 10 and of the reversing wheel 7 coordinated with ths ~ta~ionary mold support plate 1l the toothed belt 17 or 18, respectively, passing around the said reversing wheel 23 or 24 and around a re~ersing wheel 25 or 26 mounted on the fre0 end of the guide rail 15 or 16, respectively. The ~tep-up ratio of the wheels 10, 23 or 7, 24 nonrotatably conn~cted to one another by the particular shaft 21 or 2~ depends on the ratio of the distances traveled by the movable mold support plate 2 during the opening or closing movement and by the removal tools 11 and 12 moving in and out.
For exac positioniny of the tools 11 and 12 in the removal position~ a stop 27 is provided, against which one of the holding plates 13 comes ~o rest. The mold support pl~te 2 carrying the drive wheel 10 i5 moved slightly further, for example from 5 to 10 mm, in order to keep the holding plate firmly positioned at the ~top.
A clamping element 28 inserted in the first toothed belt 5, for example a spring or a hydraulic or p~eumatic work-ing cyllnder mounted o~ the mold support plate 2, avoids - 4 - o.Z. 0050/40167 overextansion of the blocked toothed belt. A working cylinder has the advantage that the clamping force is ad~ustable by means of the operating pressure. For example, the pres3ure and hence the clamping force can be reduced when the stop position i reached, to prevent ths load on the toothed belt from increasing. For this purpos~, an appropriate final control elementr for ex-ample a valve, in the operatincJ pressure loop is adjusted by means of a switch or sensor present at the stop position, via a conventional control circuit.
Claims (6)
1. Apparatus for removing injection molded parts from an injection molding machine having a multi-level mold which has two mold support plates which can be moved with respect to a stationary mold support plate, compris-ing a first chain drive or toothed belt drive which passes around two stationary reversing wheels and which is engaged by a drive wheel mounted on the mold support plate which can be moved by the injection molding machine, and second and third chain drives or toothed belt drives which can be driven by the first chain drive or toothed belt drive by means of step-up gears and are equipped with removal tools, and one of which is con-nected to the stationary mold support plate and the other is connected to one of the movable mold support plates.
2. Apparatus as claimed in claim 1, wherein the step-up gears are formed by arranging one reversing wheel each of the second and third chain drives or toothed belt drives on the shaft of the drive wheel or on the shaft of the reversing wheel of the first chain drive or toothed belt drive, which reversing wheel is coordinated with the stationary mold support plate.
3. Apparatus as claimed in claim 1, wherein, for exact positioning of the removal tools, a stop is pro-vided for one or more of these tools and a clamping element is inserted in the first chain drive or toothed belt drive.
4. Apparatus as claimed in claim 3, wherein the clamping element of the first chain drive or toothed belt drive is adjustable in its clamping force.
5. Apparatus as claimed in claim 3, wherein the clamping element is a hydraulic or pneumatic working cylinder.
6 Apparatus as claimed in claim 1, wherein the removal tools are detachably connected to the second and third chain drives or toothed belt drives.
Drawing
Drawing
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3830210.1 | 1988-09-06 | ||
| DE3830210A DE3830210A1 (en) | 1988-09-06 | 1988-09-06 | REMOVAL DEVICE FOR INJECTION MOLDING PARTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1317723C true CA1317723C (en) | 1993-05-18 |
Family
ID=6362348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000609133A Expired - Fee Related CA1317723C (en) | 1988-09-06 | 1989-08-23 | Apparatus for removing injection molded parts |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0358104B1 (en) |
| JP (1) | JPH02113917A (en) |
| KR (1) | KR900004475A (en) |
| AT (1) | ATE96078T1 (en) |
| CA (1) | CA1317723C (en) |
| DE (2) | DE3830210A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4110948C3 (en) * | 1991-04-05 | 1997-10-09 | Remak Maschinenbau Gmbh | Process for removing injection molded articles from an injection molding machine |
| GB2274183B (en) * | 1992-03-12 | 1996-07-03 | Dataproducts Corp | Virtual cartridges |
| FR2699887B1 (en) * | 1992-12-30 | 1995-01-27 | Rg Plastiques | Method and device for bringing and depositing a label on a molded object in a mold. |
| FR2706349B1 (en) * | 1993-06-15 | 1995-08-11 | Rg Plastiques | Device for bringing and depositing in a mold a label on a molded object. |
| DE10147554A1 (en) * | 2001-09-26 | 2003-04-10 | Ursula Luckow | Method and device for shaping and handling workpieces |
| DE10243130B3 (en) | 2002-09-17 | 2004-04-08 | Hekuma Gmbh | Process for removing injection molded parts from an injection molding machine and injection molding machine with handling system |
| WO2018152640A1 (en) | 2017-02-24 | 2018-08-30 | Athena Automation Ltd. | Injection molding machine for molding preforms |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8200184U1 (en) * | 1982-06-24 | Basf Ag, 6700 Ludwigshafen | Injection molding tool with removal device | |
| DE3529775A1 (en) * | 1985-08-20 | 1987-03-12 | Fahr Bucher Gmbh | DEVICE FOR PRODUCING MOLDED PARTS |
| JPS634923A (en) * | 1986-06-26 | 1988-01-09 | Sumitomo Heavy Ind Ltd | Automatic unloading device for molded form in injection molder or the like |
| JPS63303715A (en) * | 1987-06-04 | 1988-12-12 | Japan Steel Works Ltd:The | Take-out device of molded product |
-
1988
- 1988-09-06 DE DE3830210A patent/DE3830210A1/en not_active Withdrawn
-
1989
- 1989-08-23 CA CA000609133A patent/CA1317723C/en not_active Expired - Fee Related
- 1989-08-31 AT AT89116060T patent/ATE96078T1/en active
- 1989-08-31 DE DE89116060T patent/DE58905951D1/en not_active Expired - Fee Related
- 1989-08-31 EP EP89116060A patent/EP0358104B1/en not_active Expired - Lifetime
- 1989-09-04 KR KR1019890012731A patent/KR900004475A/en not_active Application Discontinuation
- 1989-09-06 JP JP1229467A patent/JPH02113917A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0358104A3 (en) | 1991-05-08 |
| KR900004475A (en) | 1990-04-12 |
| JPH02113917A (en) | 1990-04-26 |
| EP0358104A2 (en) | 1990-03-14 |
| ATE96078T1 (en) | 1993-11-15 |
| EP0358104B1 (en) | 1993-10-20 |
| DE3830210A1 (en) | 1990-03-15 |
| DE58905951D1 (en) | 1993-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |